MESON Chess Problem Database
Problem Display
PID: 102681 (3R4/4p3/2B1p3/2pq3N/4k2r/1N2n3/K3PQbB/8 w - - 0 1)
Monreal, Pierre
Europe Echecs, 1962
#2
8 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxc6
- 2.Sd2#
- 1...Rxh2
- 2.Qf4#
- 1...Rh3
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...Rxh5
- 2.Qf4#
- 1...Bf1
- 2.Qf3#
- 1...Bf3
- 2.Qxf3#
- 1...Bh3
- 2.Qf3#
- 1...Sc4
- 2.Sxc5#
- 1...Sg4
- 2.Qf4#
- 1...e5
- 2.Sg3#
- 1...Qxc6
- Tries
- 1.Bxd5+?
- 1...Sxd5
- 2.Sd2#
- 2.Sxc5#
- 1...exd5!
- 1...Sxd5
- 1.Rxd5?
- threat
- 2.Sd2#
- 2.Sxc5#
- 2.Sg3#
- 2.Rd4#
- 2.Re5#
- 1...Rxh2
- 2.Sd2#
- 2.Sxc5#
- 2.Sg3#
- 2.Qf4#
- 1...Rxh5
- 2.Sd2#
- 2.Sxc5#
- 2.Rd4#
- 2.Re5#
- 2.Qf4#
- 1...Sxd5
- 2.Sd2#
- 2.Sxc5#
- 1...Rg4
- 2.Sd2#
- 2.Sxc5#
- 2.Rd4#
- 2.Re5#
- 1...Rh3
- 2.Sd2#
- 2.Sxc5#
- 2.Rd4#
- 2.Re5#
- 2.Qf4#
- 1...Rf4
- 2.Sd2#
- 2.Sxc5#
- 2.Sg3#
- 2.Qxf4#
- 1...Bf3
- 2.Sd2#
- 2.Sxc5#
- 2.Re5#
- 2.Qxf3#
- 2.exf3#
- 1...Sf1
- 2.Sxc5#
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rd4#
- 2.Rxc5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Sc4
- 2.Sxc5#
- 2.Sg3#
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rd4#
- 2.Rxc5#
- 2.Re5#
- 2.Rf5#
- 2.Rg5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...Sf5
- 2.Sd2#
- 2.Sxc5#
- 2.Rd1#
- 2.Rd2#
- 2.Rd3#
- 2.Rd4#
- 2.Rxc5#
- 2.Re5#
- 2.Rxf5#
- 2.Rd6#
- 2.Rd7#
- 2.Rd8#
- 1...c4
- 2.Sd2#
- 2.Sc5#
- 2.Sg3#
- 2.Rd4#
- 2.Re5#
- 1...e5
- 2.Sd2#
- 2.Sxc5#
- 2.Sg3#
- 2.Rd4#
- 2.Rxe5#
- 1...exd5!
- threat
- 1.Qg3?
- threat
- 2.Qe5#
- 1...Rxh2
- 2.Qf4#
- 1...Rxh5
- 2.Qf4#
- 1...Rf4
- 2.Qxf4#
- 1...Sc4
- 2.Qd3#
- 1...Sg4
- 2.Qf4#
- 2.Qd3#
- 1...e5
- 2.Qxe5#
- 1...Kf5!
- threat
- 1.Qxg2+?
- 1...Kf5
- 2.Rf8#
- 1...Sxg2!
- 1...Kf5
- 1.Qf7?
- threat
- 2.Qxe6#
- 1...Qxc6
- 2.Sd2#
- 1...Rxh5
- 2.Qf4#
- 1...Sg4
- 2.Qf4#
- 1...Bh3
- 2.Qf3#
- 1...e5
- 2.Sg3#
- 1...Sc4!
- threat
- 1.Bxd5+?
- Keys
- 1.Rd6!
- threat
- 2.Rxe6#
- 1...Qxc6
- 2.Sd2#
- 1...Rxh5
- 2.Qf4#
- 1...exd6
- 2.Sf6#
- 1...Rf4
- 2.Qxf4#
- 1...Bf3
- 2.Qxf3#
- 1...Bh3
- 2.Qf3#
- 1...Sc4
- 2.Sxc5#
- 1...Sg4
- 2.Qf4#
- 1...e5
- 2.Sg3#
- threat
- 1.Rd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 3
- Sets
- Q(f);N_PINS(E),N_SPINQ(f),XB(G)::S(E)
- R(d);N_GUARD,XB(D)::QAR1(C)
- R(d);N_GUARD::QAR1(C)
- R(d);N_GUARD::QAR1(C),XR(d)
- R(d);N_GUARD,XS(F)::QAR1(C)
- B(a);N_GUARD::QAB1(C)
- B(a);N_GUARD::QAB1(C),XB(a)
- S(b);N_PINS(E)::S(E),XP(e)
- S(b);S_CUTR(d)::QAR1(C)
- P(g);SBLOCK::S(F)
- Tries
- Try
- B(G);CHECK,N_SPINS(E),XQ(f)
- Refutation
- P(g);XB(G)
- Try
- R(H);N_SPINS(E),XQ(f)
- Threat
- DUALS(5)
- Refutation
- P(g);P_SPINP(g),XR(H)
- Try
- Q(C);
- Threat
- QAR1(C)
- Vars
- R(d);N_GUARD,XB(D)::QAR1(C)
- R(d);N_GUARD,XS(F)::QAR1(C)
- R(d);N_GUARD::QAR1(C),XR(d)
- S(b);N_PINS(E),OGATE::QAB1(C)
- P(g);::QAR1(C),XP(g)
- Refutation
- K(c);N_SPINQ(f),S_FLIGHT
- Try
- Q(C);CHECK,XB(a)
- Vars
- K(c);N_SPINQ(f),S_FLIGHT::R(H)
- Refutation
- S(b);XQ(C)
- Try
- Q(C);
- Threat
- QAR2(C),XP(g)
- Vars
- Q(f);N_PINS(E),N_SPINQ(f),XB(G)::S(E)
- R(d);N_GUARD,XS(F)::QAR1(C)
- S(b);S_CUTR(d)::QAR1(C)
- B(a);N_GUARD::QAB1(C)
- P(g);SBLOCK::S(F)
- Refutation
- S(b);N_PINS(E)
- Try
- Actual
- R(H);
- Threat
- R(H),XP(g)
- Vars
- Q(f);N_PINS(E),N_SPINQ(f),XB(G)::S(E)
- R(d);N_GUARD,XS(F)::QAR1(C)
- P(h);N_GUARD,XR(H)::S(F)
- R(d);N_GUARD::QAR1(C),XR(d)
- B(a);N_GUARD::QAB1(C),XB(a)
- B(a);N_GUARD::QAB1(C)
- S(b);N_PINS(E)::S(E),XP(e)
- S(b);S_CUTR(d)::QAR1(C)
- P(g);SBLOCK::S(F)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).